CN220423936U - Curved curet for intervertebral operation - Google Patents
Curved curet for intervertebral operation Download PDFInfo
- Publication number
- CN220423936U CN220423936U CN202321485972.5U CN202321485972U CN220423936U CN 220423936 U CN220423936 U CN 220423936U CN 202321485972 U CN202321485972 U CN 202321485972U CN 220423936 U CN220423936 U CN 220423936U
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- curet
- cutting edge
- head
- curette
- connecting rod
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- 238000001356 surgical procedure Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 description 11
- 238000005452 bending Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 210000003041 ligament Anatomy 0.000 description 3
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005786 degenerative changes Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 210000000273 spinal nerve root Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Abstract
The utility model discloses a bent curet for intervertebral surgery, which comprises a handle, a connecting rod and a curet head, wherein the handle, the connecting rod and the curet head are sequentially connected, the front end of the curet head is provided with a first cutting edge, the front side of the curet head is provided with a first inclined surface inclined backwards and upwards, the curet head is provided with a hole groove, the front side of the hole groove is provided with a second inclined surface inclined backwards and downwards, the bottom of the inclined surface is provided with a second cutting edge, the first cutting edge and the second cutting edge are combined, the operation stripping in the front-back direction can be realized, so that the stripping is more thorough, the specific first cutting edge is suitable for stripping operation on the opposite side of a vertebral plate, the second cutting edge is more suitable for stripping operation on the back side of the vertebral plate, the side of the vertebral plate can be stripped after being attached, the bent curet does not need to be inclined at the same time, and the operation is convenient for stripping the vertebral plate part on the opposite side.
Description
Technical Field
The utility model relates to an intervertebral surgical medical instrument, in particular to a bending curet for intervertebral surgery.
Background
Lumbar disc herniation is a degenerative change of lumbar disc, and due to the metamorphosis and rupture of the annulus fibrosus, the nucleus pulposus herniates, and then the spinal cord and nerve roots are pressed and stimulated, so that a series of corresponding clinical manifestations are caused.
For most patients with lumbar disc herniation, the problem can be solved by minimally invasive surgery. Common minimally invasive procedures include: an inferior foramen-optic nuclectomy, an inferior-canal decompression and a percutaneous screw fixation fusion, etc. Typical quasi-foramen techniques, diskettes techniques, open surgery, etc., and minimally invasive techniques are mainly aimed at the symptoms of delayed release of pressure in the disc. If the discs are degenerated and there is a spinal instability, an open procedure may be selected. The open surgery also comprises the technology of combining pedicle screws and intervertebral fusion and even decompression technology to treat the herniated disk, and in the current excision process of the nucleus pulposus of the lumbar intervertebral disk, a curet or a nucleus pulposus clamp is required to clean the denatured nucleus pulposus in the lumbar intervertebral disk, and meanwhile, a curet is required to be adopted to peel off the yellow ligament at the attachment position of the vertebral plate and the articular process joint. The common curet only has a single-sided curet edge right in front, the head of the curet is in a spoon shape, and because the operation space is narrow, the spoon shape curet is in an irregular shaping state at the positions of the vertebral lamina and the articular process joint in the use process, the common curet is adopted, and the narrow space can not be well cleared each time, and particularly the related lumbar vertebral endplate is not scraped cleanly, not thoroughly, and the clearance effect is general, so that the bone grafting fusion rate can not be ensured.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide the bending curette for the intervertebral operation, which has reasonable structural design and is convenient for stripping tissues of the vertebral lamina and the articular process joint.
The utility model solves the problems by adopting the following technical scheme: the utility model provides a curved curet for intervertebral surgery, includes handle, connecting rod and curet head, handle, connecting rod and curet head connect gradually, the front end of curet head be provided with first blade, the front side of curet head be the first inclined plane of slope upward backward, curet head be provided with the hole groove, the front side of hole groove be provided with the second inclined plane of slope downward backward, the bottom of inclined plane be provided with the second blade.
Further: the bottom of the curet head is provided with an arc-shaped groove.
Further: the first cutting edge and the axial direction of the connecting rod form an angle of 120-150 degrees.
Further: the tail end of the connecting rod is arranged in the chute of the handle in a sliding way and is fastened through a fastening bolt piece.
Compared with the prior art, the utility model has the following advantages and effects: the first cutting edge and the second cutting edge are combined, so that the operation stripping in the front-back direction can be realized, the stripping is more thorough, the specific first cutting edge is suitable for stripping operation on the opposite side of the vertebral plate, the second cutting edge is more suitable for stripping the operation back side of the vertebral plate, the second cutting edge can strip the side part of the vertebral plate after being attached, the bending curette does not need to have an overlarge inclination angle, and simultaneously, the stripping of the vertebral plate part on the opposite side of the operation is convenient.
Drawings
Fig. 1 is a schematic view showing the structure of a curved curette for intervertebral surgery according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a curette head according to an embodiment of the present utility model.
Fig. 3 is a schematic view of the operation of the embodiment of the utility model with the curette head fitted to the opposite side of the operation of the lamina.
Fig. 4 is a schematic illustration of the operation of the compliant curette head and the back side of the operation of the lamina in accordance with an embodiment of the present utility model.
Fig. 5 is a schematic view illustrating the operation of the curette head fitting and the articular process according to the embodiment of the present utility model.
Figure 6 is a schematic view of the operation of the curet head adapter and lumbar endplate according to an embodiment of the utility model.
Figure number: the handle 101, the connecting rod 102, the curet head 103, the first cutting edge 104, the first inclined surface 105, the hole groove 106, the second inclined surface 107, the second cutting edge 108, the arc-shaped groove 109 and the fastening bolt 110.
Detailed Description
The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.
Referring to fig. 1-6, the curved curet for intervertebral surgery according to this embodiment includes a handle 101, a connecting rod 102 and a curet head 103, the handle 101, the connecting rod 102 and the curet head 103 are sequentially connected, a first cutting edge 104 is provided at the front end of the curet head 103, a first inclined surface 105 inclined upwards backwards is provided at the front side of the curet head 103, a hole groove 106 is provided at the curet head 103, a second inclined surface 107 inclined downwards backwards is provided at the front side of the hole groove 106, and a second cutting edge 108 is provided at the bottom of the inclined surface.
The present embodiment relates to a curved curet for intervertebral surgery, which is related to a combination of a first cutting edge 104 and a second cutting edge 108, and can implement operation peeling in the front-back direction, so that peeling is more thorough, wherein the specific first cutting edge 104 is suitable for peeling operation on the opposite side of a vertebral plate a (yellow ligament portion), as shown in fig. 3, while the second cutting edge 108 is more suitable for peeling operation on the back side of the vertebral plate, the second cutting edge 108 can peel off the side of the vertebral plate after attaching, the curved curet does not need to have an excessively large inclination angle, and meanwhile, peeling is also convenient for peeling the vertebral plate B (yellow ligament portion) on the opposite side of the operation in operation, as shown in fig. 4.
In this embodiment, the bottom of the curet head 103 is provided with an arc-shaped groove 109, in this structure, the curet head is suitable for cutting and stripping the articular process joint portion C, for example, as shown in fig. 5, wherein the first cutting edge 104 forms an angle of 120 ° to 150 ° with the axial direction of the connecting rod 102, and is suitable for cutting into a narrow portion, particularly for embedding and stripping at the lumbar vertebral endplate D, so that the endplate is completely scraped, as shown in fig. 6.
In this embodiment, the tail end of the connecting rod 102 is slidably disposed in the chute of the handle 101 and fastened by the fastening bolt, so as to adjust the adapting length according to the wound depth of the actual patient, and to meet the actual operation requirement.
The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.
Claims (4)
1. A curved curet for intervertebral surgery, characterized in that: the novel multifunctional curette comprises a handle, a connecting rod and a curette head, wherein the handle, the connecting rod and the curette head are sequentially connected, a first cutting edge is arranged at the front end of the curette head, the front side of the curette head is a first inclined surface inclined upwards backwards, the curette head is provided with a hole groove, a second inclined surface inclined downwards backwards is arranged at the front side of the hole groove, and a second cutting edge is arranged at the bottom of the inclined surface.
2. A curved curette for use in intervertebral surgery according to claim 1, wherein: the bottom of the curet head is provided with an arc-shaped groove.
3. A curved curette for use in intervertebral surgery according to claim 1, wherein: the first cutting edge and the axial direction of the connecting rod form an angle of 120-150 degrees.
4. A curved curette for use in intervertebral surgery according to claim 1, wherein: the tail end of the connecting rod is arranged in the chute of the handle in a sliding way and is fastened through a fastening bolt piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485972.5U CN220423936U (en) | 2023-06-12 | 2023-06-12 | Curved curet for intervertebral operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485972.5U CN220423936U (en) | 2023-06-12 | 2023-06-12 | Curved curet for intervertebral operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220423936U true CN220423936U (en) | 2024-02-02 |
Family
ID=89703078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321485972.5U Active CN220423936U (en) | 2023-06-12 | 2023-06-12 | Curved curet for intervertebral operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220423936U (en) |
-
2023
- 2023-06-12 CN CN202321485972.5U patent/CN220423936U/en active Active
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